Steering-engine.



J. BERGESBN.

STEERING ENGINE. APPLIOATION HLBD- SEPT, u. 191'3.

Patented Nov. 1o, 1914.

2 SHEETS-SHEET 1.

WIM/8858 ATTORNEYS J. `BERGESEN.

STEERING ENGINE. APPLICATION FILED SEPI'. 11,1913.

Patented Nov. 10, 1914 2 SHEETS-SHEET 2.

WITNESS/:"8 INI/ENTOR UNITED sirarnfs rnrnnrornrcn. 'i i JOHN emerson, vor New Yoann. Y. i

Specification of Letters Patent.

'Patented Nov. 1o, 1914.

Application led September 11, 41913. Serial No. 789,250.

former Patent No. 821,398, issuedA May 22,

The object of the invention is to provide a simplified structure wherein a slight movement of the valve mechanism will and strong in structure, and which may be is a sectlon through Fig. 2 approximately j readily move the piston in either direction. Another object of the invention is to provide an improved valve which is simple easily applied and removed.

In carrying out the object of the inventioii the cylinder of the engine may be of any desired kind, as for instance of substantially the same kind and shape as in my former `patent above mentioned.l Arranged in the journal for vthe piston, which has an oscillating piston, .is a valve designed to coutrol the inlet and outlet from thecylinder through suitable ports inthe journal or piston rod. This valve member is yactuated by a suitable shaft having an engaging end which engages the -valve member so that whenever the shaft is turned the valve member will be correspondingly turned. Associated with the valve member is an inlet for the pressure which is designed to be adjustably positioned so that the pressure may be led into the controlling valve from any desired point.

In the accompanying di'awings--Figurel is a top plan view of an engine embodying the invention; Fig. 2 is a section through Fig. l approximately on line 2 2; Fig. 3

on line 3 3; Fig. 4 is a section through Fig. 2 approximately on line 4 4; Fig. is a side elevation of the controlling Valve; Fig. 6 is an end view of the controlling valve shown in Fig. 5.

Referringr to the accompanying drawings by numeral 1 indicates the cylinder and 2 the pistonarranged therein, piston 2 being rigidly connected to or formed integral with a bearingl shaft or piston rod 3. It will be -*observed that this type of engine is the oscillating type, and is designed ordinarily for steering purposes though it may be Vreadily used 1n other ways. The piston in this form of engine merely oscillates or moves back and. forth within the limits of the cylinder, which back and forth movement is conveyed "through any suitable means tothe rudder :of aship or to any other device being operlated so as to give the same a back and forth movement.

The journal member or piston rod 3 is formed with a longitudinal bore el: which 1s 1n free communication with ports 5 and 6, and the removable head or end 7. The end '7 is held in place by studs and nuts 8, and .may be adjusted. so that the ports 5 and 6 1may extend, at any desired angle, port 6 being shown closed by a plug, while port 5 '1s -open so as to receive pressure from any suitable supply. Extending through the head 7 is a valve operating shaft 9 provided with a suitable packing 10 and formed with an' end member 11 merging into an overhanging lip 12, the end kmember 11 fitting lbetween the ianges or projections 13 and 14 on the valve 15 while lip 12 projects over part of the valve and thereby -the valve is held properly in place, so as to continually register with the exhaust port 16. The

of cylinder 1. upon theactuation of the shaf 9. It will be, noted from Figs. 1 and 4 that valve 1.5 does not entirely fill thebore i except at the extreme end so that the pressure may enter-port 18 while port 19 is-in registry with the exhaust port 16 and vice versa. arranging the `lip 12 as shown .in Fig. 2, and` by providing a shoulder 21, y'the valve cannot be assembled incorrectly, and also the pressure on the valve-cannot 'move shaft 9 longitudinally.

In connection with the'piston rod 3 it will be observed from Figs. 3 and 4 that -two strips of packing 22 and 2 3 are providedywhich continually contact with the pistonA rod 13 at all times,'regardless of the movement thereof. (3o-acting with-.these packing members are packing members 24 and 25 mounted in the. piston 2 and acted on by springs 26 and 27, so as to properly divide or separate the exhaust side of the piston vfrom the pressure side. By prosimple, strong structure.

Vidingthese packings 22 to 25', inclusive, no.4

pressure or exhaust can affect the interior ofthe cylinder except through the valve whereby a .maximum efliciency is presented with a minimum number of parts and a It will be evident by use of the springs 26 and 27 that the packing members 24 and 25 are self adjusted, and will take Aup the usual wear so that a' tight joint is presented until the packings are entirely worn out when they may be easily renewed.

Connecting with the shaft 9 is an operating lever 20 which may be .actuated by any' desiredV means but which is manually controlled for varying the position of the valve 15. At the opposite end of the engine an arm 21 is provided which is rigidly secured to the piston rod 3, and. is designed to actuate a cable or other means for transmitting power to the rudder .or other devices being operated. In case it is desiredY to turn the rudder in a certain direction arm`20 is moved which will shift'valve 15, for in stance so as to allow pressure to enter into port 18 and the exhaust to pass out port 19.

yThis will cause the piston 2 to move to the right (Fig. 4). If the valve is moved only a short distance a small quantity of the ressure will be admitted and then the piston will move and automatically -shut oii .the pressure while simultaneously shutting olf the exhaust. The piston 2 will by these `means be held in a new position-until positively moved to another position. This ability for 'moving the piston to a given vposition and holding the same in that position is of Vimportance as it insures the proper turning of ships at any time with a minimum amount of ower.

In describing t e device the same has been described as being operated by pressure, which pressure may be of any desired kind, as for instance steam, oil, water air, or gas under pressure. l It isalso evident that the device may be usedfforany purpose to which itis adapted, as for instance for steerl ing Iengi'nes on vessels air ships,` vehicles and similar devices.

, cured thereto, said shaft being formed with a longitudinal bore having a pair of ports,

of a hou'si'n for said piston, said housing surrounding. part of said shaft, a valve -said valve, said valve and shaft, of a housing the drawings the miam member loosely arranged .in said bore and pressing against the end and side walls thereof, said shaft being formed with an exhaust port registering with one end of eing formed with an exhaust passageway designed to be brought into registry with either of said ports, means for directing steam into said bore, and a manually operated shaft for shifting said valve member. 2. In an oscillating piston engine, the combination withA an engine cylinder piston said shaft, a valve seat shaft and dividing the shaft into live and .exhaust compartments, a valve co-acting with said seat for controlling the live pressure acting on saidpiston and the exhaust therefrom, and a manually operated shaft for moving said valve, the movement of the valve being in the same direction as the movement of the piston when pressure is acting thereon.

3. In an: oscillating piston engine, the combination with an engine cylinder piston and a power shaft connected therewith, of a housing inclosing part of said shaft, said shaft being formed with a longitudinal bore merging into an exhaust b ore, with a pair of ports communicating-with said longitudinal bore, a valve formed with a single pas- Y sageway and with shouldered portions, manually operated means for actuating said valve for causing the shouldered portions to uncover said ports, and said exhaust passageway to registerv with said ports, said piston following said valve and covering said ports, whereby said power shaft is moved in a direct proportion to the movement of said valve.

4. In an oscillating pistonv engine, a housing, a piston arranged in saidv housing, a

shaft connected with saidpiston and'moved thereby, said shaft being formed with a longitudinal bore forming pressure and .valve chambers, and having a pair of orts opening on opposite sides of said piston, and an exhaust passageway extendin from the end of the bore, a valve member ormed with an arc-shaped passageway, said arcshaped passageway having one end continuallyvin registry with said exhaust port, and the opposite end normally opposite said piston W ereby the` exhaust port is normally closed, -a manually operated member connectedwith said valve,4and means for' actuating said operatingl member, whereby said lvalve may be r,shifted so as to cause inc osiiig part of nged in said" either .of said ports to register with the live pressure and either port to registerl with said arc-.shapedipassageway i.. 5. In an oscilla/tingk piston engine, a housing, a piston arranged to oscillate in said housing, a shaft connected with said piston, :said shaft having a longitudinal bore delao and means for directing pressure into said haust bore and a an exhaust n haust bore are divided,

- formed with lover-hanging member partially pressure compartment, an expair of ports opening into the opposite sides of said piston, a valve filling I' said bore and formed with an exhaust assageway, said valve member being formed with a shoulder for normally closing said ports, and with passa eway continually registering with the ex aust passageway in said shaft and covered by said piston .when said shoulders cover said port, an operating shaft connected with said valve member for turning the same, whereby-.one of said ports is brought into registry with said live pressure compartment, and the other of said ports is brought into registry with the exhaust passageway of the valve member.

6. In an oscillating piston engine, a housing, an oscillating piston arranged in said housing, a shaft secured to said piston and operated thereby, said shaft having a longitudinal bore merving intoan -exhaust bore, said shaft being a so provided with a pair of ports opening on pposite sides of'sald piston, a valveforme sageway seated on the bottom of said bore, whereby said longitudinal bore and said exsaid piston being of a width sufficient to normally cover the exhaust bore, and the valve' member being ortions dee the piston lining a live signed to cover said yports whi is covering the exhaust passageway, a oontrolling shaft connected with 'said valve member for shifting the position thereof,

longitudinal bore'.

7. In an oscillating piston engine, a housing, an oscillatin piston arranged .in said ouslng, a shaft rigidly secured to said iston formed with a longitudinal bore an an .way in said shaft from with an arc-shaped pas-- exhlaust bore, said shaft'being also formed wit sides of said piston, a valve formed with an exhaust passageway continually in communication lwith said exhaust passageway, said valve member dividing the exhaust a Said longitudinal bore, said valve member bein also formed with a pair of flanges, where y a socket is -formed in one end, an operating member arranged with one end fitting into said socket,

a pair of ports opening on opposite i said end having an overlapping portion engaging the lower part of said valve, whereby the valve is held properly on its seat, the pressure in the valve chamber assisting the operating member in holdin the valve properly seated, and means for directing pressure to said longitudinal bore.

8. In an oscillating piston engine, a hous-.

ing, an oscillating piston arranged in vsaid housing,

said shaft being formed with a longitudinal bore having an exhaust passageway and a pair of ports opening on opposite sides of said passageway, a valve member arranged in said bore designed to control the inlet and exhaust, a head for said shaft formed with a pair of passageways, means for closing oneof'said a shaft connected with said piston and operated' thereby msA passageways, means for adjustably securing said head in position, and a valve controlling shaft vextending through said head and engaging said valve. v y In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN BERGEsEN.

.Witnesses:

J. R. RowLAND, A JAMES BURNS. 

